Ubuntu Security Notices
Developers issue an Ubuntu Security Notice when a security issue is fixed in an official Ubuntu package. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section.
To report a security vulnerability in an Ubuntu package, please contact the Security Team.
The Security Team also produces OVAL files for each Ubuntu release. These are an industry-standard machine-readable format dataset that contain details of all known security vulnerabilities and fixes relevant to the Ubuntu release, and can be used to determine whether a particular patch is appropriate. OVAL files can also be used to audit a system to check whether the latest security fixes have been applied.
Search USNs
USN ID, name, description or CVE ID contains
991 - 1000 of 2790 results
10 May 2023
Open vSwitch could be made to stop forwarding packets if it received specially crafted network traffic.
- Ubuntu 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
10 May 2023
Several security issues were fixed in OpenStack Neutron.
- Ubuntu 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-20267, CVE-2022-3277, CVE-2021-40085 + 2 others
10 May 2023
OpenStack Heat could be made to expose sensitive information.
- Ubuntu 20.04 LTS,
- 18.04 LTS
CVE ID
10 May 2023
Several security issues were fixed in css-what.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
10 May 2023
SQL parse could be made to denial of service if it received a specially crafted regular expression.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
9 May 2023
Several security issues were fixed in Ceph.
- Ubuntu 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2021-3979, CVE-2022-3854, CVE-2022-3650 + 1 other
8 May 2023
Several security issues were fixed in MySQL.
- Ubuntu 23.04 ,
- 22.10 ,
- 22.04 LTS,
- 20.04 LTS,
- 18.04 LTS
CVE ID
CVE-2023-21940, CVE-2023-21953, CVE-2023-21982 + 17 others
5 May 2023
USN-6055-1 introduced a regression.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
5 May 2023
The system could be made to run programs as an administrator.
- Ubuntu 18.04 LTS,
- 16.04 LTS
CVE ID
4 May 2023
Several security issues were fixed in Ruby.
- Ubuntu 20.04 LTS,
- 18.04 LTS,
- 16.04 LTS
CVE ID
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